According to Paul Baltes's life-span perspective, which of the following is true of contexts? A. They remain constant over time.
B. They have a biological impact on development.
C. They refer to the capacity for change.
D. They are influenced by genetic factors.

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.

What was one step that charlemagne took to unite his kingdom? a. he chose a single strong heir to inherit his throne. b. he drove muslim forces out of europe. c. he created and supported schools. d. he declared himself head of the catholic church.

During he 1840s, more americans than british settled in the oregon country. how do you think this settlement influenced negotiations with the british over the territory